// JavaScript Document
/* * jQuery placeholder, fix for IE6,7,8,9 
* @author JENA
* @since 20131115.1504 
* @website ishere.cn 
*/
var JPlaceHolder = {    
//检测    
_check : function(){        
	return 'placeholder' in document.createElement('input');
},    
//初始化    
init : function(){        
	if(!this._check()){            
	this.fix();        
	}    
},    
//修复    
fix : function(){        
jQuery(':input[placeholder]').each(function(index, element) {            
		var self = $(this), txt = self.attr('placeholder');            
		self.wrap($('<div></div>').css({position:'relative', zoom:'1', border:'none', background:'none', padding:'none', margin:'none'}));            
		var pos = self.position(), h = self.outerHeight(true), paddingleft = self.css('padding-left');            
		var holder = $('<span></span>').text(txt).css({position:'absolute', left:pos.left, top:pos.top, height:h, lienHeight:h, paddingLeft:paddingleft, color:'#aaa'}).appendTo(self.parent());            
		self.focusin(function(e) {                
			holder.hide();            
		}).focusout(function(e) {                
			if(!self.val()){                    
				holder.show();                
			}            
		});            
		holder.click(function(e) {
			 holder.hide();                
			 self.focus();            
		});        
	});    
}};
//执行
jQuery(function(){    
	JPlaceHolder.init();   
});